Bag sealing



W. R. KOHL BAG SEALING Filed Dec. 8, 1937 Patented Oct. 24, 1939 UNITEDSTATES PATENT OFFICE 2,117,492 me smnmd William R. Kohl Glenview, 11!.Application December 8, 1937, Serial No. 178,645

4 Claims.

My invention is abag, and method of sealing a bag.

. Other objects are sealing a moth-proof bag; a weather-proof bag; and aself-sealing pressure seal bag capable of repeated opening and repeatedsealing.

Further, my invention has a peculiar and inventive application to bagsmade of transparent material which may be sealed by heat and pressure,and pressure self-sealing, protecting garments against atmosphericconditions, and forms of life having a tendency to injure and destroygarments therein.

The accompanying drawing is an embodiment of my invention, in which Fig.1 is a broken section of a bag showing the treatment of the upperportion, the side, and the bottom.

Fig. 2 is a flat view of one primary sealing member.

Fig. 3 is a .flat view of a seal.

Fig. 4 is a view of an aperture to be sealed after a hanger is insertedthru for support.

Fig. 5 is a broken section of the bottom of a bag, showing the structureof the sealing members.

Fig. 6 is a broken section of the bottom of a bag, showing the device inFig. 5 closed.

Fig. 7 is a broken section of a modification, in which there is asealing means inside a bag to strengthen the outside sealing means. 1

As illustrated I show primarily the device as applicable to a bagpreferably made of transparent material which is responsive to sealingunder heat and pressure, such as some forms of rubber derivative, orviscose. The same treatment is applicable to bags using a thermoplasticadhesive for union.

v The bag i0 is made from a flat sheet folded, with a longitudinal seamH by pressing upon the same a heated tool having a serrated form i2,Joining the lapping edges of the beam ll; these serrations making longstrong lines of union perfectly air tight and stronger than the basicmaterial itself. This tube I0 is flattened and at one end is lapped overon the body at either side I 3 and Il from a central opening the edgesl6 and I I of the lapped portions sealed to the body by heat andpressure in serrated form II. The opening I5 is provided for the freepassage therethru of a hanger for supporting a garment therein. Iprovide a means for sealing the opening i5 comprising two members, onepreferably a double diamond shape [8, Fig. 2, the diamonds lockingmember of a Joined at one edge ll of each adapted to be folded at theirjunction; the other a single diamond shape 2|, to correspond to oneportion of it. These members l8 and 2| are formed out of a substantiallytough fabric coated on one side 5 with a substantially non-dryingself-sealing adhesive, the adhesive being initially temporarilyprotected by a fabric easily removed. In the member l8 a scoring of thetemporary fabric at 22 is made so that a portion 23 may be removed iileaving the arrowhead portion 24 intact, upon which the member I! isstraddled over an inclined edge of the top of the bag, simply pressedagainst the area adjacent the.centra1 opening l5,

with the arrowhead portion lines 22 registering 35 with the line It ofthe opening thus leaving an unsealed mouth 25 along the inclined edge ofthe bag opposite to the edge which is sealed by the lapping thereoverwith the member it: the said opening 25 being provided for the passagetherean thru of the hook portion of a hanger. The member 2i beingrelieved of fabric a half portion is adhesively attached to that portionof member i8 which is adhesively attached to the back of the bag, as at26; the other half of 2! hanging 25 free facing theaperture 25. Thiscompletes the bag at its upper portion ready for use. When a garmentwith a hanger has been placed in the bag and the hook of the hanger hasbeen passed thru the aperture 25 the said portion H is lapped 80 overthe aperture 25 and pressed down, looking it. The adhesive is of such acharacter that when not exposed to the atmosphere it retains itsadhesive characteristics, and the ensealing portion of 2i may be readilylifted to remove the hangerand 85 then placed back.

On the bottom of the bag the front wall 2? is shorter than the rear wall28: on the face of the front wall 21 I attach a strip 29 of theadhesively coated material, its outer surface being uncoated; and on theinner face of the rear wall 28, I attach a strip 30 adhesively coated onboth sides, the exposed side faced with a temporary fabric 20 to bestripped 012 after a garment is suspended in the bag and the strip 30turned up and adhesively attached to the strip 29, thus completing thesealing of the whole bag. A tab 20a is lightly attached to the fabric20, extends around its edge and is stuck to the back thereof for liftinga beginning end of fabric 20 exposing its coating.

In Fig. 7 I show a modified form in which I place one of thedouble-diamond shapes l8 inside of the bag in reverse position Ila fromthe outside form It, thus giving a doubieatrength to the central openingI6 of the bag.

I do not limit myself to the device as shown and described except in sofar as I am limited by the scope of my claims.

I claim:

1. A bag constructed of one piece of material into an elongatedflattened tube, one end of said bag having its edges angularly turnedoverand attached to the body of the bag, thesaid turnedover edges spacedapart providing a median opening for the passage therethru of agarment-suporting device, a means for sealing said opening consisting oftwo coactive members each having a coating of non-drying self-sealingadhesive, one of said members being adapted to straddle one of theturned-over edges .and be attached at the front and back of the bagimmediately adjacent to the median line of the opening and provide amouth for the passage therethru of the supporting device, the othermember adapted to be attached to the straddle member on one side andhaving a free portion adjacent to be brought over and attached to theopposite straddle member sealing the mouth opening after the supportingmember is in position.

2. A bag consisting of a rubber derivative formed into a flat tubularbody, its joining seams fused by heat and pressure, one end of said baghaving means for being self-sealingly closed when articles have beeninserted-therein, the opposite end having a restricted opening medianthereof, the portions adjacent to either side of the said opening foldedupon the body and sealed by fusing to the body of the material, acombination closure of the restricted opening comprising two members,one a double diamond shape and one a single diamond shape, each of thesaid diamond-shaped portions being constructed of a tough fabric bearingupon one face a non-drying self-sealing adhesive adapted to be sealed bysimple sealing pressure thereon, the double portion adapted to straddleone inclined edge adjacent to the median line, one half-portionattachable to the rear and the other half-portion attachable to thefront, reinforcing the material at the restricted opening and providinga mouth opening on the inclined side opposite to the straddled member,the.single diamond-shaped member being attached by a half portion to oneportion of the double diamond-shaped member and having a free portionadjacent to the mouth opening, and

adapted, when a hanger hook has been passed thru the same, to be foldedover the mouth opening and self-sealed on the other portion of thedouble diamond-shaped reinforcing member, the single diamond shapedmember adapted to be unsealed on the removal of articles from the bag,and be repeatedly self-scale bypressure. 3. A garment bag consisy' g ofa flattened tube longitudinally sealed having at one end a restrictedopening flanked on either side by laps folded against and sealinglyunited to the body, the opposite end opening having means tohermetically seal the same, the restricted opening reinforced by amember of a locking combination consisting of two diamond shapedportions adapted to straddle an inclined edge and each bepressure-sealed to the back and front respectively adjacent to theopening and sealingly close said opening to the media line thereofproviding a mouth opening along ,a portion of the op posite inclinededge, said mouth capable of being lockingly sealed by a second member ofthe looking combination-which consists of a member adapted to beself-sealed by pressure to the rear side of the straddle member of thelocking combination and having a portion adapted to be closed over themouth opening of the restricted opening after a hanger hook has beenpassed thru the same and be self-sealed by pressure on the front side ofthe reinforcing straddle member of the locking combination,

4. A bag of flattened tubular-material sealed longitudinally by heat andpressure, one end having means to be hermetically sealed after theinsertion of material'therein, the opposite end having a restrictedopening thru which to pass thehook portion of a hanger device, andadjacent to the restricted opening on either side thereof a fold of thebag material, a means to sealingly enclose the restricted openingconsisting of two members constituting a locking device, one of saidmembers being a double diamond shape adapted to straddle the inclinededge of one fold,

- one of said diamond portions respectively attachable to the front andone to the backof the bag to strengthen the restricted opening, and

primarily bearing upon a surface of each a non drying self-sealingadhesive adapted to be selfsealed by ordinary pressure and capable ofbeing readily unsealed and being rescaled by self-sealing pressure.

WILLIAM R. KOHL.

